488678766809 has 2 divisors, whose sum is σ = 488678766810. Its totient is φ = 488678766808.

The previous prime is 488678766803. The next prime is 488678766839. The reversal of 488678766809 is 908667876884.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411656976025 + 77021790784 = 641605^2 + 277528^2 .

It is a cyclic number.

It is not a de Polignac number, because 488678766809 - 2¹² = 488678762713 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 488678766809.

It is not a weakly prime, because it can be changed into another prime (488678766803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244339383404 + 244339383405.

It is an arithmetic number, because the mean of its divisors is an integer number (244339383405).

Almost surely, 2^488678766809 is an apocalyptic number.

It is an amenable number.

488678766809 is a deficient number, since it is larger than the sum of its proper divisors (1).

488678766809 is an equidigital number, since it uses as much as digits as its factorization.

488678766809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1560674304, while the sum is 77.

The spelling of 488678766809 in words is "four hundred eighty-eight billion, six hundred seventy-eight million, seven hundred sixty-six thousand, eight hundred nine".